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IARC Technical Report No. 42
Lyon 2005
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The publication of the third edition of the International Classification of Diseases for Oncology
(ICD-O-3) (WHO, 2000) required the preparation of new programs to convert and to validate data
collected by cancer registries. The data are used for epidemiological research and to monitor
disease incidence and survival, and it is imperative that they be accurate as possible, so as
to provide a true reflection of patterns and trends in cancer occurrence.
A variety of methods are employed to check validity in cancer registries. A widely used method is
the so-called internal consistency, whereby computer algorithms are used to detect unlikely or
impossible codes, or combinations of codes. The programs provided in this publication include a
revised version of the IARC/IACR Check Program originally published in Comparability and Quality
Control in Cancer Registration (Parkin et al, 1994). This first program was created to assess
data submitted for Cancer Incidence in Five Continents (IARC Scientific Publications nos. 120,
143 and 155). The new program is based on ICD-O-3.
Conversion programs are provided for ICD-O-3 to ICD-10, and the present publication also includes
the programs which have been published previously to convert data between all editions of ICD-O
and the International Classification of Diseases (ICD).
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Technical Report No. 42
available here
(1,618 Kb Acrobat document)
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